TzuMao Litzumao@mit.edu

I am a Ph.D. student in the computer graphics group at MIT CSAIL, advised by Frédo Durand. I am interested in researching photorealistic rendering and programming systems. Specifically, I work on developing efficient sampling methods for light transport simulation, and building systems for facilitating computer graphics applications through symbolic manipulation (e.g. automatic differentiation). I received my B.S. and M.S. degree in computer science and information engineering from National Taiwan University in 2011 and 2013, respectively. During my time at National Taiwan University, I was a member of the graphics group at Communication and Multimedia Lab, where I worked with YungYu Chuang.
Differentiable Monte Carlo Ray Tracing through Edge Sampling
TzuMao Li, Miika Aittala, Frédo Durand, Jaakko Lehtinen ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia 2018). Computing gradients of light transport equation through explicit sampling of Dirac delta functions on triangle edges. 

Differentiable Programming for Image Processing and Deep Learning in Halide
TzuMao Li, Michaël Gharbi, Andrew Adams, Frédo Durand, Jonathan RaganKelley ACM Transactions on Graphics (Proceedings of SIGGRAPH 2018). Halide meets automatic differentiation. 

Aether: An Embedded Domain Specific Sampling Language for Monte Carlo Rendering
Luke Anderson, TzuMao Li, Jaakko Lehtinen, Frédo Durand ACM Transactions on Graphics (Proceedings of SIGGRAPH 2017). A programming language for Monte Carlo rendering that automatically computes probability density of a light path sample. 

Anisotropic Gaussian Mutations for Metropolis Light Transport through HessianHamiltonian Dynamics
TzuMao Li, Jaakko Lehtinen, Ravi Ramamoorthi, Wenzel Jakob, Frédo Durand ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia 2015). A variant of Metropolis light transport algorithm that utilizes automatically differentiated Hessian matrix of light path contribution. 

DualMatrix Sampling for Scalable Translucent Material Rendering
YuTing Wu, TzuMao Li, YuHsun Lin, and YungYu Chuang IEEE Transactions on Visualization and Computer Graphics (TVCG), 2015. Subsurface scattering with manylights using matrix sampling. 

SUREbased Optimization for Adaptive Sampling and Reconstruction
TzuMao Li, YuTing Wu, YungYu Chuang ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia 2012). Stein's unbiased risk estimator for sampling and denoising in Monte Carlo rendering. 
Graphics bibtex
A mega bibtex file containing many graphicsrelated literatures. 

Joint Stein’s Unbiased Risk Estimation for Adaptive Sampling and Reconstruction
A short note on a generalized formulation of our SUREbased rendering method. 

dpt
My prototypical renderer. 

smallgdpt
GradientDomain Path Tracing in ~450 lines. 